Trailer coupler housing



FIG. 1 is a front top perspective view of a trailer coupler housingshowing our new design it being understood that the broken lines are forillustrative purposes only and form no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for a trailer coupler housing, as shown anddescribed.